interface IKun {
  name: string
  age: number
  slogan?: string
}
// 把所有属性都变为可选
type IkunOptional = Partial<IKun>


// 类型体操
type HYPartial<T> = {
  [P in keyof T]?: T[P]
}

type IkunOptional1 = HYPartial<IKun>

export { }